Vidar

Vidar is a dangerous malware that steals information and cryptocurrency from infected users. It derives its name from the ancient Scandinavian god of Vengeance. This upgraded version of Arkei stealer has been terrorizing the internet since 2018.

Type
Trojan
Origin
ex-USSR
First seen
1 December, 2018
Last seen
27 September, 2022
Also known as
Arkei
Global rank
15
Week rank
32
Month rank
33
IOCs
47438

What is Vidar / Arkei malware?

Vidar is an information stealer trojan that was first identified in December 2018. It is either a fork of Arkei or the result of its evolution. Named after the god of vengeance from Scandinavian mythology, Vidar is used to steal information from infected systems, take screenshots, steal cryptocurrency, and more.

General description of Vidar malware

Vidar is presumed to have originated in a Russian-speaking country since the malware is configured to stop execution if it detects that it is being run on a machine that is located in one of the ex-USSR nations or on one that has a Russian keyboard layout.

Being another cyber threat that is available for purchase based on the MaaS ( Malware-as-a-Service ) business model, Vidar can be purchased on its “official” website for a hefty price tag of $700, at least for the PRO version. Though, a stripped-down version of the malware can be obtained for just $250.

According to the Vidar trojan analysis, malware is written in the C++ programming language. Purchasing account grants the attacker access to a control panel where the cybercriminal can set up the malware to target particular information on the victims’ PC. Like Arkei, cybercriminals need to take precautions to secure the main payload themselves, using crypto or a packer. The control panel displays the current builder version, user settings, malware status, and logs. It should be noted that Vidar data stealer uses domain names to search for C&C servers, where stolen data is being dropped, changing every four days. Though they are steadily changing, a constant response is required.

Arkei is capable of stealing text files in multiple formats, browser cookies and history, browser records, including data from TOR, as well as autofill value information, including banking and credit card details. Based on the Vidar analysis, the malware can search for cryptocurrency wallet information, take screenshots and act as a message stealer, recording private messages from various software.

What’s more, Vidar is also known to be able to steal digital coins from offline wallets. In fact, holders of Litecoin, Bitcoin, Ethereum, Zcash, and DashCore are in potential danger, as these are the cryptocurrencies currently supported by the malware.

After collecting all targeted information, the malware archives it and sends the stolen data to a control server, after which Vidar removes traces of its work and deletes itself from the system.

Vidar analysis

A video recorded in ANY.RUN malware hunting service allows us to take a closer look at the lifecycle of Vidar and perform Vidar analysis by themselves.

arkei execution process tree

Figure 1: A visual process graph generated by ANY.RUN

text report of the arkei malware analysis

Figure 2: The customizable text report provided by ANY.RUN is a perfect tool to share the results of an analysis

Vidar execution process

According to the Vidar analysis, after the user downloads and runs a malicious file, it spawns a child process and collects information from the infected system. Often, after the information was collected, the malware kills and deletes itself from the system through a command-line command.

How to avoid infection by Vidar malware?

When spread via spam email campaigns like NanoCore or Agent Tesla, the Vidar stealer requires the user to download and run a malicious file to enter an active state and begin execution. Therefore, following some basic cybersecurity rules can ensure that users will stay safe from Arkei malware and the incident response team will work effectively.

As such, users should be careful when downloading attachments in emails from unknown senders. The best practice is to avoid downloading such files altogether, therefore not putting oneself in danger at all.

In addition, downloading only licensed software from trustworthy sources and avoiding gaming hacking clients greatly reduced the risk of being infected with malware such as Vidar trojan, which uses these attack vectors to infect victims.

The distribution process of Vidar

According to the Vidar trojan analysis, Arkei is distributed through spam email campaigns as a malicious attachment, like other malware. In addition, cases of Vidar being distributed using shady software and gaming hack clients have also been recorded. Vidar infostealer targets users all over the world, except some ex-USSR countries, including Russia.

How to detect Vidar using ANY.RUN?

Some malware creates files in which it named itself. You can find such info about Arkei trojan using ANY.RUN's "Static Discovering" during your Vidar analysis. Open either the "Files" tab in the lower part of the task's window or click on the process and then on the "More Info" button in the appeared window. After that, all you need to do is click on the file.

arkei vidar log file Figure 3: Arkei's log file

Conclusion

Vidar / Arkei is a hazardous information stealer trojan, distributed as malware as a service. Thanks to its extensive stealer feature set, Vidar trojan can be used to retrieve a wide variety of information, including stealing select cryptocurrency coins from the users. Additionally, Vidar is capable of stealing data from TOR.

Thankfully, malware hunting services like ANY.RUN allows researchers to conduct extensive studies of malware samples in a secure environment, allowing them to spread information about the danger and develop effective countermeasures and incident response.

IOCs

IP addresses
199.33.112.227
162.241.225.237
5.79.66.145
162.241.123.16
104.21.45.70
193.29.187.162
104.18.5.149
45.151.144.128
185.247.61.225
18.205.93.1
18.205.93.2
172.67.181.118
104.21.48.75
141.8.194.149
18.205.93.0
162.210.199.87
78.47.227.68
104.21.36.85
178.208.83.40
92.63.192.234
Hashes
0660059f3e2fb2ab0349242b4dde6bf9e37305dacc2da870935f4bede78aed34
af04334369878408898a223e63ec50e1434c512bc21d919769c97964492fee19
4587da5dca2374fd824a15e434dae6630b24d6be6916418cee48589aa6145ef6
6ec8b7ce6c9858755964f94acdf618773275589024e2b66583e3634127b7e32c
15abc3f55703b89ff381880a10138591c6214dee7cc978b7040dd8b1e6f96297
a1726ea1e9eabdb8ba961488f9ff72e792d30e4a1368535d880b4d688f96e2d2
6bb64f1b33d208ca943fedd8c836e4656e8b2c81442ace38b22b4cc05c3da5d2
95bb38f864cb2a18cc598ce238ef85dc5eae8de91c0f2e58c175460fc8ebe94d
c91f7fe462c07f5159888749c9f4699203357f9d2e76cd7b9b02894b07a2c8e2
b1d3c9d99b280d0b6c75efbf271254f8081cf947b77d51ff8fa9fa67e61e6513
e872b9dd00f8fd62e837cbba0a6eba7327a69866f04090c2f2402871feb8b8cc
1610453727cf82bf981deb05041c2a0655cac62aa9bbf341bbb1b0a46d83b059
f7f26db31907b5ecf56488b80400e4ab0874a66fb313aaf850ceb9c9659779a5
279c60038d0b7b97c130d2913e501eca3c8ec4b78ed799059a8e3ba3a18d1dc7
b00baf14b43db920e40b355c70c0ce780155809db99259beca3e8f0178344b05
4d47791970c9e4b829ef0cc0049eecdfae3655f87a1e79620bbcc39eb8c21c8b
7c2143421354c1c802d535b8820f0329d42765076e7cf9eb827ac4e64de1deec
c4d7bdee0fb6060da3b2b6eb15db79381f49fe4a4f85ade197f3de02f4ee9c4f
0c6058dd764f4921fcb201f1c7fb7a9f24ae2c4ade920ff36fe29886cd6a8f7e
907f0bc67233b6680624db9dbb1531a0c193e32e9f6e35aa9277d7bb4e10516d
Domains
api.omillionaire.com
plausible.omillionaire.com
omillionaire.com
xakfor.net
www.nexuslogger.com
zerit.top
fuyt.org
tzgl.org
kotob.top
majul.com
elx01.knas.systems
sda.fyi
cloudflare.hcaptcha.com
www.singnema.com
www.rszkjx-vps-hosting.website
mojobiden.com
mysig.io
easydiag.biz
champs.design
gucunug.com

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